RMCF2010FT40R2 Equivalent & Substitute Parts

Part Overview

The RMCF2010FT40R2 is a 40.2 Ohm ±1% 0.75W thick film chip resistor in 2010 (5025 Metric) package manufactured by Stackpole Electronics Inc. This component is rated for automotive applications under AEC-Q200 standard with an operating temperature range of -55°C to 155°C. The part is currently in active production status with 733 units in stock. Equivalent and substitute parts are necessary to ensure design flexibility, manage supply chain continuity, and accommodate alternative sourcing strategies while maintaining identical electrical and mechanical performance.

Substiute Parts

RMCF2010FT40R2

Stackpole Electronics IncIn Stock: 831RMCF2010FT40R2 Datasheet

Current PartRFQ

CRCW201040R2FKEF

Vishay DaleIn Stock: 8810CRCW201040R2FKEF Datasheet

DirectRFQ

ERJ-12SF40R2U

Panasonic Electronic ComponentsIn Stock: 5804ERJ-12SF40R2U Datasheet

DirectRFQ

AC2010FK-0740R2L

YAGEOIn Stock: 1317AC2010FK-0740R2L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RMCF2010FT40R2 is determined by strict equivalence across the following parameters: resistance value (40.2 Ohms), tolerance (±1%), power rating (0.75W), package type (2010 / 5025 Metric), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and automotive AEC-Q200 certification. All substitute parts listed maintain identical electrical specifications and mechanical dimensions, ensuring direct pin-for-pin and form-factor compatibility. Packaging format variations (Tape & Reel versus Cut Tape) do not affect electrical or mechanical substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

CRCW201040R2FKEF (Vishay Dale) and AC2010FK-0740R2L (YAGEO) are preferred substitutes for new designs. Both maintain active product status with full AEC-Q200 automotive certification and ROHS3 compliance. CRCW201040R2FKEF offers the highest inventory availability at 8772 units. AC2010FK-0740R2L includes moisture-resistant thick film composition and is available in Cut Tape & Digi-Reel® packaging format, providing additional supply chain flexibility.

ERJ-12SF40R2U (Panasonic) is electrically and mechanically equivalent but carries "Not For New Designs" status. This part remains suitable for legacy system maintenance and repair applications where existing designs require component replacement. Inventory availability is 5775 units.

All three substitute parts are direct replacements with no circuit modifications required. Selection should prioritize product status alignment with design lifecycle requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can CRCW201040R2FKEF be used as a direct replacement for RMCF2010FT40R2?

A: Yes. Both parts are electrically and mechanically identical with matching resistance (40.2 Ohms ±1%), power rating (0.75W), package (2010 / 5025 Metric), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and AEC-Q200 automotive certification. No circuit modifications are required.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging is supplied on continuous carrier tape for automated assembly processes. Cut Tape (CT) & Digi-Reel® packaging provides the same components in smaller quantities on cut tape segments. Both formats contain identical components with no electrical or mechanical differences. Selection depends on production volume and assembly equipment compatibility.

Q: Why is ERJ-12SF40R2U marked "Not For New Designs"?

A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. The part remains available for existing applications and maintenance purposes. For new designs, CRCW201040R2FKEF or AC2010FK-0740R2L are recommended.

Q: Are all substitute parts AEC-Q200 certified?

A: Yes. RMCF2010FT40R2, CRCW201040R2FKEF, ERJ-12SF40R2U, and AC2010FK-0740R2L all carry AEC-Q200 automotive qualification, confirming suitability for automotive applications within the specified operating temperature range.

Q: What is the maximum seated height difference among these parts?

A: AC2010FK-0740R2L has a maximum seated height of 0.026" (0.65mm), while RMCF2010FT40R2, CRCW201040R2FKEF, and ERJ-12SF40R2U are rated at 0.028" (0.70mm). This 0.002" (0.05mm) difference is negligible for standard PCB assembly and does not affect interchangeability in typical applications.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed parts including RMCF2010FT40R2, CRCW201040R2FKEF, ERJ-12SF40R2U, and AC2010FK-0740R2L are ROHS3 compliant with MSL rating of 1 (Unlimited), confirming compliance with environmental and moisture sensitivity requirements.